Since Syria's brutal civil war began eight years ago, millions of Syrians have fled their country to escape the bombs and bullets. But hundreds of thousands have been displaced within Syria's borders, where they languish in packed refugee camps. The al-Hol camp in northern Syria is sprawling, and of its nearly 70,000 residents, some 11,000 are family members of foreign ISIS fighters, according to the UN Office of the High Commissioner for Human Rights. The surprise American withdrawal from northern Syria last week paved the way for Turkey and Syria's Bashar al-Assad to move in. Some 160,000 civilians have now fled the border region that Turkey is bombarding, deepening a humanitarian crisis in a stretch of Syria that had been relatively secure since the defeat of ISIS's self-declared caliphate back in March. Here's a look at the camps for displaced people in the area.